California earthquakes

M1.6 earthquake 3 km SE of Pacifica, CA

A magnitude 1.6 earthquake struck 3 km SE of Pacifica, CA on Mon, Mar 9, 2026, 1:10 AM PDT (08:10 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M4.6 1 km SE of Boulder Creek, CA. This one was a foreshock.

Pacifica forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2026-03-09 08:10:54 UTC
Depth
8.6 km (5.3 mi), shallow
Epicenter
37.593° N, 122.458° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.2 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
79°
Stations used
52

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 52 in the 30 days before it.

After

  1. 1.64 km SE of San Ramon, CA · 208 days ago · 9 km deep · 49 km away
  2. 2.510 km ESE of Black Point-Green Point, CA · 207 days ago · 13 km deep · 55 km away · felt by 8
  3. 1.86 km NE of Alamo, CA · 207 days ago · 10 km deep · 53 km away
  4. 2.12 km NE of Millbrae, CA · 205 days ago · 13 km deep · 8 km away · felt by 3
  5. 1.77 km W of Kenwood, CA · 205 days ago · 9 km deep · 91 km away
  6. 2.84 km SE of San Ramon, CA · 205 days ago · 9 km deep · 48 km away · felt by 94
  7. 2.13 km SE of Pacifica, CA · 205 days ago · 9 km deep · 1 km away · felt by 2
  8. 2.45 km WSW of Portola Valley, CA · 205 days ago · 4 km deep · 30 km away · felt by 7
  9. 1.95 km WSW of Portola Valley, CA · 204 days ago · 4 km deep · 30 km away · felt by 2
  10. 1.92 km E of Danville, CA · 204 days ago · 10 km deep · 49 km away
  11. 1.62 km ESE of Pacheco, CA · 204 days ago · 15 km deep · 55 km away
  12. 1.74 km SE of San Ramon, CA · 204 days ago · 8 km deep · 49 km away
  13. 2.55 km WSW of Portola Valley, CA · 204 days ago · 4 km deep · 30 km away · felt by 26
  14. 1.67 km WSW of Gilroy, CA · 203 days ago · 9 km deep · 99 km away
  15. 2.35 km NNW of Pittsburg, CA · 203 days ago · 22 km deep · 71 km away
  16. 1.64 km ESE of San Ramon, CA · 203 days ago · 7 km deep · 50 km away
  17. 1.63 km ESE of San Ramon, CA · 202 days ago · 7 km deep · 49 km away
  18. 1.64 km SE of San Ramon, CA · 201 days ago · 8 km deep · 49 km away
  19. 2.37 km SSW of Yountville, CA · 200 days ago · 7 km deep · 84 km away · felt by 12
  20. 2.12 km NNW of Kensington, CA · 200 days ago · 11 km deep · 40 km away · felt by 4
  21. 1.715 km NNE of Morgan Hill, CA · 200 days ago · 4 km deep · 83 km away
  22. 1.93 km SE of Pacifica, CA · 200 days ago · 8 km deep · 0 km away
  23. 1.86 km WSW of Colma, CA · 197 days ago · 9 km deep · 9 km away
  24. 1.85 km SE of Pacifica, CA · 197 days ago · 9 km deep · 2 km away
  25. 2.13 km SE of Pleasant Hill, CA · 195 days ago · 10 km deep · 52 km away · felt by 17
  26. 2.73 km ESE of San Ramon, CA · 195 days ago · 10 km deep · 49 km away · felt by 62
  27. 1.73 km ESE of San Ramon, CA · 195 days ago · 7 km deep · 50 km away
  28. 1.63 km ESE of San Ramon, CA · 195 days ago · 7 km deep · 50 km away
  29. 1.93 km SE of Pacifica, CA · 195 days ago · 9 km deep · 1 km away
  30. 1.93 km ESE of San Ramon, CA · 194 days ago · 8 km deep · 49 km away · felt by 1
  31. 2.83 km ESE of San Ramon, CA · 194 days ago · 9 km deep · 49 km away · felt by 156
  32. 1.63 km ESE of San Ramon, CA · 194 days ago · 8 km deep · 49 km away
  33. 1.64 km SE of San Ramon, CA · 193 days ago · 8 km deep · 49 km away
  34. 2.515 km N of Morgan Hill, CA · 193 days ago · 5 km deep · 81 km away · felt by 2
  35. 1.62 km SE of Pacifica, CA · 193 days ago · 9 km deep · 1 km away
  36. 1.83 km SE of Pacifica, CA · 192 days ago · 9 km deep · 1 km away · felt by 1
  37. 1.83 km SE of Pacifica, CA · 192 days ago · 8 km deep · 1 km away
  38. 1.72 km SE of Pacifica, CA · 191 days ago · 9 km deep · 1 km away
  39. 1.53 km ESE of San Ramon, CA · 190 days ago · 7 km deep · 50 km away
  40. 2.09 km SW of Brentwood, CA · 189 days ago · 18 km deep · 66 km away · felt by 3
  41. 2.54 km SE of San Ramon, CA · 189 days ago · 9 km deep · 48 km away · felt by 14
  42. 2.08 km SSW of Brentwood, CA · 188 days ago · 18 km deep · 67 km away
  43. 1.75 km SE of San Ramon, CA · 188 days ago · 9 km deep · 49 km away
  44. 1.75 km SE of San Ramon, CA · 188 days ago · 9 km deep · 49 km away
  45. 1.75 km SE of San Ramon, CA · 187 days ago · 8 km deep · 49 km away
  46. 1.64 km SE of Pacifica, CA · 187 days ago · 9 km deep · 1 km away
  47. 2.03 km ESE of San Ramon, CA · 187 days ago · 8 km deep · 49 km away
  48. 1.53 km SE of Pacifica, CA · 186 days ago · 10 km deep · 1 km away
  49. 1.99 km N of Boulder Creek, CA · 185 days ago · 11 km deep · 52 km away · felt by 36
  50. 4.61 km SE of Boulder Creek, CA · 185 days ago · 10 km deep · 61 km away · felt by 33,078
  51. 1.79 km N of Livermore, CA · 185 days ago · 13 km deep · 64 km away
  52. 2.57 km NNE of Bay Point, CA · 185 days ago · 23 km deep · 72 km away · felt by 42
  53. 1.610 km E of Alum Rock, CA · 185 days ago · 5 km deep · 70 km away
  54. 1.60 km SW of Boulder Creek, CA · 185 days ago · 9 km deep · 60 km away
  55. 1.63 km ESE of Boulder Creek, CA · 184 days ago · 7 km deep · 62 km away
  56. 1.69 km ENE of Milpitas, CA · 184 days ago · 6 km deep · 59 km away
  57. 2.22 km N of Hayward, CA · 184 days ago · 5 km deep · 35 km away · felt by 39
  58. 1.71 km ESE of Boulder Creek, CA · 183 days ago · 10 km deep · 61 km away
  59. 1.82 km N of Hayward, CA · 183 days ago · 4 km deep · 35 km away
  60. 1.73 km ENE of Pacheco, CA · 182 days ago · 16 km deep · 57 km away

The first 60 of 91.

Before

  1. 1.74 km ESE of San Ramon, CA · 209 days ago · 5 km deep · 50 km away · felt by 2
  2. 2.65 km SE of San Ramon, CA · 210 days ago · 8 km deep · 48 km away · felt by 25
  3. 2.63 km ESE of San Ramon, CA · 210 days ago · 9 km deep · 49 km away · felt by 30
  4. 1.620 km NE of Morgan Hill, CA · 210 days ago · 6 km deep · 93 km away
  5. 2.51 km SW of Aptos Hills-Larkin Valley, CA · 211 days ago · 5 km deep · 90 km away · felt by 122
  6. 1.64 km ESE of San Ramon, CA · 211 days ago · 7 km deep · 50 km away
  7. 1.85 km WSW of San Francisco Zoo, CA · 212 days ago · 8 km deep · 17 km away
  8. 1.75 km WNW of San Francisco Zoo, CA · 213 days ago · 13 km deep · 20 km away
  9. 1.716 km SE of Livermore, CA · 214 days ago · 9 km deep · 70 km away · felt by 1
  10. 1.78 km E of Alum Rock, CA · 215 days ago · 8 km deep · 68 km away
  11. 1.615 km E of Seven Trees, CA · 216 days ago · 7 km deep · 77 km away
  12. 2.74 km ESE of San Ramon, CA · 216 days ago · 8 km deep · 50 km away · felt by 32
  13. 1.65 km ESE of San Ramon, CA · 216 days ago · 5 km deep · 50 km away · felt by 2
  14. 1.94 km ESE of San Ramon, CA · 216 days ago · 8 km deep · 49 km away
  15. 2.45 km ESE of San Ramon, CA · 216 days ago · 4 km deep · 50 km away · felt by 2
  16. 1.84 km SE of San Ramon, CA · 216 days ago · 7 km deep · 49 km away · felt by 2
  17. 3.24 km SE of San Ramon, CA · 216 days ago · 7 km deep · 49 km away · felt by 317
  18. 1.86 km ENE of Vallejo, CA · 220 days ago · 3 km deep · 65 km away · felt by 4
  19. 2.29 km N of Bay Point, CA · 220 days ago · 24 km deep · 71 km away
  20. 2.59 km NNE of Milpitas, CA · 222 days ago · 8 km deep · 55 km away · felt by 32

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc75324877. Read Sun, Oct 4, 2026, 9:14 AM UTC.